#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
-#include <asm/scatterlist.h>
#include <asm/io.h>
#include <linux/ata.h>
#include <linux/workqueue.h>
-#include <scsi/scsi_host.h>
/*
- * compile-time options: to be removed as soon as all the drivers are
- * converted to the new debugging mechanism
+ * compile-time options
*/
#undef ATA_DEBUG /* debugging output */
#undef ATA_VERBOSE_DEBUG /* yet more debugging output */
#undef ATA_NDEBUG /* define to disable quick runtime checks */
#undef ATA_ENABLE_PATA /* define to enable PATA support in some
* low-level drivers */
+#undef ATAPI_ENABLE_DMADIR /* enables ATAPI DMADIR bridge support */
/* note: prints function name for you */
#define BPRINTK(fmt, args...) if (ap->flags & ATA_FLAG_DEBUGMSG) printk(KERN_ERR "%s: " fmt, __FUNCTION__, ## args)
-/* NEW: debug levels */
-#define HAVE_LIBATA_MSG 1
-
-enum {
- ATA_MSG_DRV = 0x0001,
- ATA_MSG_INFO = 0x0002,
- ATA_MSG_PROBE = 0x0004,
- ATA_MSG_WARN = 0x0008,
- ATA_MSG_MALLOC = 0x0010,
- ATA_MSG_CTL = 0x0020,
- ATA_MSG_INTR = 0x0040,
- ATA_MSG_ERR = 0x0080,
-};
-
-#define ata_msg_drv(p) ((p)->msg_enable & ATA_MSG_DRV)
-#define ata_msg_info(p) ((p)->msg_enable & ATA_MSG_INFO)
-#define ata_msg_probe(p) ((p)->msg_enable & ATA_MSG_PROBE)
-#define ata_msg_warn(p) ((p)->msg_enable & ATA_MSG_WARN)
-#define ata_msg_malloc(p) ((p)->msg_enable & ATA_MSG_MALLOC)
-#define ata_msg_ctl(p) ((p)->msg_enable & ATA_MSG_CTL)
-#define ata_msg_intr(p) ((p)->msg_enable & ATA_MSG_INTR)
-#define ata_msg_err(p) ((p)->msg_enable & ATA_MSG_ERR)
-
-static inline u32 ata_msg_init(int dval, int default_msg_enable_bits)
-{
- if (dval < 0 || dval >= (sizeof(u32) * 8))
- return default_msg_enable_bits; /* should be 0x1 - only driver info msgs */
- if (!dval)
- return 0;
- return (1 << dval) - 1;
-}
+#ifdef ATA_NDEBUG
+#define assert(expr)
+#else
+#define assert(expr) \
+ if(unlikely(!(expr))) { \
+ printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \
+ #expr,__FILE__,__FUNCTION__,__LINE__); \
+ }
+#endif
/* defines only for the constants which don't work well as enums */
#define ATA_TAG_POISON 0xfafbfcfdU
LIBATA_MAX_PRD = ATA_MAX_PRD / 2,
ATA_MAX_PORTS = 8,
ATA_DEF_QUEUE = 1,
- /* tag ATA_MAX_QUEUE - 1 is reserved for internal commands */
- ATA_MAX_QUEUE = 32,
- ATA_TAG_INTERNAL = ATA_MAX_QUEUE - 1,
+ ATA_MAX_QUEUE = 1,
ATA_MAX_SECTORS = 200, /* FIXME */
- ATA_MAX_SECTORS_LBA48 = 65535,
ATA_MAX_BUS = 2,
ATA_DEF_BUSY_WAIT = 10000,
ATA_SHORT_PAUSE = (HZ >> 6) + 1,
ATA_SHT_USE_CLUSTERING = 1,
/* struct ata_device stuff */
- ATA_DFLAG_LBA = (1 << 0), /* device supports LBA */
- ATA_DFLAG_LBA48 = (1 << 1), /* device supports LBA48 */
- ATA_DFLAG_CDB_INTR = (1 << 2), /* device asserts INTRQ when ready for CDB */
- ATA_DFLAG_NCQ = (1 << 3), /* device supports NCQ */
- ATA_DFLAG_CFG_MASK = (1 << 8) - 1,
-
- ATA_DFLAG_PIO = (1 << 8), /* device currently in PIO mode */
- ATA_DFLAG_SUSPENDED = (1 << 9), /* device suspended */
- ATA_DFLAG_INIT_MASK = (1 << 16) - 1,
-
- ATA_DFLAG_DETACH = (1 << 16),
- ATA_DFLAG_DETACHED = (1 << 17),
+ ATA_DFLAG_LBA48 = (1 << 0), /* device supports LBA48 */
+ ATA_DFLAG_PIO = (1 << 1), /* device currently in PIO mode */
+ ATA_DFLAG_LOCK_SECTORS = (1 << 2), /* don't adjust max_sectors */
+ ATA_DFLAG_LBA = (1 << 3), /* device supports LBA */
ATA_DEV_UNKNOWN = 0, /* unknown device */
ATA_DEV_ATA = 1, /* ATA device */
ATA_DEV_NONE = 5, /* no device */
/* struct ata_port flags */
- ATA_FLAG_SLAVE_POSS = (1 << 0), /* host supports slave dev */
+ ATA_FLAG_SLAVE_POSS = (1 << 1), /* host supports slave dev */
/* (doesn't imply presence) */
- ATA_FLAG_SATA = (1 << 1),
- ATA_FLAG_NO_LEGACY = (1 << 2), /* no legacy mode check */
- ATA_FLAG_MMIO = (1 << 3), /* use MMIO, not PIO */
- ATA_FLAG_SRST = (1 << 4), /* (obsolete) use ATA SRST, not E.D.D. */
- ATA_FLAG_SATA_RESET = (1 << 5), /* (obsolete) use COMRESET */
- ATA_FLAG_NO_ATAPI = (1 << 6), /* No ATAPI support */
- ATA_FLAG_PIO_DMA = (1 << 7), /* PIO cmds via DMA */
- ATA_FLAG_PIO_LBA48 = (1 << 8), /* Host DMA engine is LBA28 only */
- ATA_FLAG_PIO_POLLING = (1 << 9), /* use polling PIO if LLD
- * doesn't handle PIO interrupts */
- ATA_FLAG_NCQ = (1 << 10), /* host supports NCQ */
- ATA_FLAG_HRST_TO_RESUME = (1 << 11), /* hardreset to resume phy */
- ATA_FLAG_SKIP_D2H_BSY = (1 << 12), /* can't wait for the first D2H
- * Register FIS clearing BSY */
- ATA_FLAG_DEBUGMSG = (1 << 13),
-
- /* The following flag belongs to ap->pflags but is kept in
- * ap->flags because it's referenced in many LLDs and will be
- * removed in not-too-distant future.
- */
- ATA_FLAG_DISABLED = (1 << 23), /* port is disabled, ignore it */
-
- /* bits 24:31 of ap->flags are reserved for LLD specific flags */
-
- /* struct ata_port pflags */
- ATA_PFLAG_EH_PENDING = (1 << 0), /* EH pending */
- ATA_PFLAG_EH_IN_PROGRESS = (1 << 1), /* EH in progress */
- ATA_PFLAG_FROZEN = (1 << 2), /* port is frozen */
- ATA_PFLAG_RECOVERED = (1 << 3), /* recovery action performed */
- ATA_PFLAG_LOADING = (1 << 4), /* boot/loading probe */
- ATA_PFLAG_UNLOADING = (1 << 5), /* module is unloading */
- ATA_PFLAG_SCSI_HOTPLUG = (1 << 6), /* SCSI hotplug scheduled */
-
- ATA_PFLAG_FLUSH_PORT_TASK = (1 << 16), /* flush port task */
- ATA_PFLAG_SUSPENDED = (1 << 17), /* port is suspended (power) */
- ATA_PFLAG_PM_PENDING = (1 << 18), /* PM operation pending */
-
- /* struct ata_queued_cmd flags */
- ATA_QCFLAG_ACTIVE = (1 << 0), /* cmd not yet ack'd to scsi lyer */
- ATA_QCFLAG_SG = (1 << 1), /* have s/g table? */
- ATA_QCFLAG_SINGLE = (1 << 2), /* no s/g, just a single buffer */
+ ATA_FLAG_PORT_DISABLED = (1 << 2), /* port is disabled, ignore it */
+ ATA_FLAG_SATA = (1 << 3),
+ ATA_FLAG_NO_LEGACY = (1 << 4), /* no legacy mode check */
+ ATA_FLAG_SRST = (1 << 5), /* use ATA SRST, not E.D.D. */
+ ATA_FLAG_MMIO = (1 << 6), /* use MMIO, not PIO */
+ ATA_FLAG_SATA_RESET = (1 << 7), /* use COMRESET */
+ ATA_FLAG_PIO_DMA = (1 << 8), /* PIO cmds via DMA */
+ ATA_FLAG_NOINTR = (1 << 9), /* FIXME: Remove this once
+ * proper HSM is in place. */
+ ATA_FLAG_DEBUGMSG = (1 << 10),
+ ATA_FLAG_NO_ATAPI = (1 << 11), /* No ATAPI support */
+
+ ATA_FLAG_SUSPENDED = (1 << 12), /* port is suspended */
+
+ ATA_FLAG_PIO_LBA48 = (1 << 13), /* Host DMA engine is LBA28 only */
+ ATA_FLAG_IRQ_MASK = (1 << 14), /* Mask IRQ in PIO xfers */
+
+ ATA_QCFLAG_ACTIVE = (1 << 1), /* cmd not yet ack'd to scsi lyer */
+ ATA_QCFLAG_SG = (1 << 3), /* have s/g table? */
+ ATA_QCFLAG_SINGLE = (1 << 4), /* no s/g, just a single buffer */
ATA_QCFLAG_DMAMAP = ATA_QCFLAG_SG | ATA_QCFLAG_SINGLE,
- ATA_QCFLAG_IO = (1 << 3), /* standard IO command */
- ATA_QCFLAG_RESULT_TF = (1 << 4), /* result TF requested */
-
- ATA_QCFLAG_FAILED = (1 << 16), /* cmd failed and is owned by EH */
- ATA_QCFLAG_SENSE_VALID = (1 << 17), /* sense data valid */
- ATA_QCFLAG_EH_SCHEDULED = (1 << 18), /* EH scheduled (obsolete) */
- /* host set flags */
- ATA_HOST_SIMPLEX = (1 << 0), /* Host is simplex, one DMA channel per host_set only */
-
/* various lengths of time */
+ ATA_TMOUT_EDD = 5 * HZ, /* heuristic */
+ ATA_TMOUT_PIO = 30 * HZ,
ATA_TMOUT_BOOT = 30 * HZ, /* heuristic */
ATA_TMOUT_BOOT_QUICK = 7 * HZ, /* heuristic */
+ ATA_TMOUT_CDB = 30 * HZ,
+ ATA_TMOUT_CDB_QUICK = 5 * HZ,
ATA_TMOUT_INTERNAL = 30 * HZ,
ATA_TMOUT_INTERNAL_QUICK = 5 * HZ,
PORT_DISABLED = 2,
/* encoding various smaller bitmaps into a single
- * unsigned int bitmap
+ * unsigned long bitmap
*/
- ATA_BITS_PIO = 5,
- ATA_BITS_MWDMA = 3,
- ATA_BITS_UDMA = 8,
-
- ATA_SHIFT_PIO = 0,
- ATA_SHIFT_MWDMA = ATA_SHIFT_PIO + ATA_BITS_PIO,
- ATA_SHIFT_UDMA = ATA_SHIFT_MWDMA + ATA_BITS_MWDMA,
-
- ATA_MASK_PIO = ((1 << ATA_BITS_PIO) - 1) << ATA_SHIFT_PIO,
- ATA_MASK_MWDMA = ((1 << ATA_BITS_MWDMA) - 1) << ATA_SHIFT_MWDMA,
- ATA_MASK_UDMA = ((1 << ATA_BITS_UDMA) - 1) << ATA_SHIFT_UDMA,
+ ATA_SHIFT_UDMA = 0,
+ ATA_SHIFT_MWDMA = 8,
+ ATA_SHIFT_PIO = 11,
/* size of buffer to pad xfers ending on unaligned boundaries */
ATA_DMA_PAD_SZ = 4,
ATA_DMA_PAD_BUF_SZ = ATA_DMA_PAD_SZ * ATA_MAX_QUEUE,
-
- /* masks for port functions */
+
+ /* Masks for port functions */
ATA_PORT_PRIMARY = (1 << 0),
ATA_PORT_SECONDARY = (1 << 1),
-
- /* ering size */
- ATA_ERING_SIZE = 32,
-
- /* desc_len for ata_eh_info and context */
- ATA_EH_DESC_LEN = 80,
-
- /* reset / recovery action types */
- ATA_EH_REVALIDATE = (1 << 0),
- ATA_EH_SOFTRESET = (1 << 1),
- ATA_EH_HARDRESET = (1 << 2),
- ATA_EH_SUSPEND = (1 << 3),
- ATA_EH_RESUME = (1 << 4),
- ATA_EH_PM_FREEZE = (1 << 5),
-
- ATA_EH_RESET_MASK = ATA_EH_SOFTRESET | ATA_EH_HARDRESET,
- ATA_EH_PERDEV_MASK = ATA_EH_REVALIDATE | ATA_EH_SUSPEND |
- ATA_EH_RESUME | ATA_EH_PM_FREEZE,
-
- /* ata_eh_info->flags */
- ATA_EHI_HOTPLUGGED = (1 << 0), /* could have been hotplugged */
- ATA_EHI_RESUME_LINK = (1 << 1), /* resume link (reset modifier) */
- ATA_EHI_NO_AUTOPSY = (1 << 2), /* no autopsy */
- ATA_EHI_QUIET = (1 << 3), /* be quiet */
-
- ATA_EHI_DID_RESET = (1 << 16), /* already reset this port */
-
- ATA_EHI_RESET_MODIFIER_MASK = ATA_EHI_RESUME_LINK,
-
- /* max repeat if error condition is still set after ->error_handler */
- ATA_EH_MAX_REPEAT = 5,
-
- /* how hard are we gonna try to probe/recover devices */
- ATA_PROBE_MAX_TRIES = 3,
- ATA_EH_RESET_TRIES = 3,
- ATA_EH_DEV_TRIES = 3,
-
- /* Drive spinup time (time from power-on to the first D2H FIS)
- * in msecs - 8s currently. Failing to get ready in this time
- * isn't critical. It will result in reset failure for
- * controllers which can't wait for the first D2H FIS. libata
- * will retry, so it just has to be long enough to spin up
- * most devices.
- */
- ATA_SPINUP_WAIT = 8000,
};
enum hsm_task_states {
- HSM_ST_UNKNOWN, /* state unknown */
- HSM_ST_IDLE, /* no command on going */
- HSM_ST, /* (waiting the device to) transfer data */
- HSM_ST_LAST, /* (waiting the device to) complete command */
- HSM_ST_ERR, /* error */
- HSM_ST_FIRST, /* (waiting the device to)
- write CDB or first data block */
+ HSM_ST_UNKNOWN,
+ HSM_ST_IDLE,
+ HSM_ST_POLL,
+ HSM_ST_TMOUT,
+ HSM_ST,
+ HSM_ST_LAST,
+ HSM_ST_LAST_POLL,
+ HSM_ST_ERR,
};
enum ata_completion_errors {
- AC_ERR_DEV = (1 << 0), /* device reported error */
- AC_ERR_HSM = (1 << 1), /* host state machine violation */
- AC_ERR_TIMEOUT = (1 << 2), /* timeout */
- AC_ERR_MEDIA = (1 << 3), /* media error */
- AC_ERR_ATA_BUS = (1 << 4), /* ATA bus error */
- AC_ERR_HOST_BUS = (1 << 5), /* host bus error */
- AC_ERR_SYSTEM = (1 << 6), /* system error */
- AC_ERR_INVALID = (1 << 7), /* invalid argument */
- AC_ERR_OTHER = (1 << 8), /* unknown */
+ AC_ERR_OTHER = (1 << 0),
+ AC_ERR_DEV = (1 << 1),
+ AC_ERR_ATA_BUS = (1 << 2),
+ AC_ERR_HOST_BUS = (1 << 3),
};
/* forward declarations */
struct ata_queued_cmd;
/* typedefs */
-typedef void (*ata_qc_cb_t) (struct ata_queued_cmd *qc);
-typedef int (*ata_prereset_fn_t)(struct ata_port *ap);
-typedef int (*ata_reset_fn_t)(struct ata_port *ap, unsigned int *classes);
-typedef void (*ata_postreset_fn_t)(struct ata_port *ap, unsigned int *classes);
+typedef int (*ata_qc_cb_t) (struct ata_queued_cmd *qc);
struct ata_ioports {
unsigned long cmd_addr;
unsigned long irq;
unsigned int irq_flags;
unsigned long host_flags;
- unsigned long port_flags[ATA_MAX_PORTS]; /* pata fix */
- unsigned long host_set_flags;
void __iomem *mmio_base;
void *private_data;
};
unsigned int n_ports;
void *private_data;
const struct ata_port_operations *ops;
- unsigned long flags;
- int simplex_claimed; /* Keep seperate in case we
- ever need to do this locked */
- struct ata_host_set *next; /* for legacy mode */
- struct ata_port *ports[0];
+ struct ata_port * ports[0];
};
struct ata_queued_cmd {
struct scatterlist *__sg;
unsigned int err_mask;
- struct ata_taskfile result_tf;
+
ata_qc_cb_t complete_fn;
void *private_data;
unsigned long rw_reqbuf;
};
-struct ata_ering_entry {
- int is_io;
- unsigned int err_mask;
- u64 timestamp;
-};
-
-struct ata_ering {
- int cursor;
- struct ata_ering_entry ring[ATA_ERING_SIZE];
-};
-
struct ata_device {
- struct ata_port *ap;
- unsigned int devno; /* 0 or 1 */
- unsigned long flags; /* ATA_DFLAG_xxx */
- struct scsi_device *sdev; /* attached SCSI device */
- /* n_sector is used as CLEAR_OFFSET, read comment above CLEAR_OFFSET */
u64 n_sectors; /* size of device, if ATA */
+ unsigned long flags; /* ATA_DFLAG_xxx */
unsigned int class; /* ATA_DEV_xxx */
+ unsigned int devno; /* 0 or 1 */
u16 id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */
u8 pio_mode;
u8 dma_mode;
unsigned int multi_count; /* sectors count for
READ/WRITE MULTIPLE */
- unsigned int max_sectors; /* per-device max sectors */
- unsigned int cdb_len;
-
- /* per-dev xfer mask */
- unsigned int pio_mask;
- unsigned int mwdma_mask;
- unsigned int udma_mask;
/* for CHS addressing */
u16 cylinders; /* Number of cylinders */
u16 heads; /* Number of heads */
u16 sectors; /* Number of sectors per track */
-
- /* error history */
- struct ata_ering ering;
-};
-
-/* Offset into struct ata_device. Fields above it are maintained
- * acress device init. Fields below are zeroed.
- */
-#define ATA_DEVICE_CLEAR_OFFSET offsetof(struct ata_device, n_sectors)
-
-struct ata_eh_info {
- struct ata_device *dev; /* offending device */
- u32 serror; /* SError from LLDD */
- unsigned int err_mask; /* port-wide err_mask */
- unsigned int action; /* ATA_EH_* action mask */
- unsigned int dev_action[ATA_MAX_DEVICES]; /* dev EH action */
- unsigned int flags; /* ATA_EHI_* flags */
-
- unsigned long hotplug_timestamp;
- unsigned int probe_mask;
-
- char desc[ATA_EH_DESC_LEN];
- int desc_len;
-};
-
-struct ata_eh_context {
- struct ata_eh_info i;
- int tries[ATA_MAX_DEVICES];
- unsigned int classes[ATA_MAX_DEVICES];
- unsigned int did_probe_mask;
};
struct ata_port {
struct Scsi_Host *host; /* our co-allocated scsi host */
const struct ata_port_operations *ops;
- spinlock_t *lock;
unsigned long flags; /* ATA_FLAG_xxx */
- unsigned int pflags; /* ATA_PFLAG_xxx */
unsigned int id; /* unique id req'd by scsi midlyr */
unsigned int port_no; /* unique port #; from zero */
unsigned int hard_port_no; /* hardware port #; from zero */
unsigned int mwdma_mask;
unsigned int udma_mask;
unsigned int cbl; /* cable type; ATA_CBL_xxx */
- unsigned int hw_sata_spd_limit;
- unsigned int sata_spd_limit; /* SATA PHY speed limit */
-
- /* record runtime error info, protected by host_set lock */
- struct ata_eh_info eh_info;
- /* EH context owned by EH */
- struct ata_eh_context eh_context;
+ unsigned int cdb_len;
struct ata_device device[ATA_MAX_DEVICES];
struct ata_queued_cmd qcmd[ATA_MAX_QUEUE];
- unsigned long qc_allocated;
- unsigned int qc_active;
-
+ unsigned long qactive;
unsigned int active_tag;
- u32 sactive;
struct ata_host_stats stats;
struct ata_host_set *host_set;
- struct device *dev;
- struct work_struct port_task;
- struct work_struct hotplug_task;
- struct work_struct scsi_rescan_task;
+ struct work_struct packet_task;
+ struct work_struct pio_task;
unsigned int hsm_task_state;
-
- u32 msg_enable;
- struct list_head eh_done_q;
- wait_queue_head_t eh_wait_q;
-
- pm_message_t pm_mesg;
- int *pm_result;
+ unsigned long pio_task_timeout;
void *private_data;
-
- u8 sector_buf[ATA_SECT_SIZE]; /* owned by EH */
};
struct ata_port_operations {
void (*set_piomode) (struct ata_port *, struct ata_device *);
void (*set_dmamode) (struct ata_port *, struct ata_device *);
- unsigned long (*mode_filter) (const struct ata_port *, struct ata_device *, unsigned long);
void (*tf_load) (struct ata_port *ap, const struct ata_taskfile *tf);
void (*tf_read) (struct ata_port *ap, struct ata_taskfile *tf);
u8 (*check_altstatus)(struct ata_port *ap);
void (*dev_select)(struct ata_port *ap, unsigned int device);
- void (*phy_reset) (struct ata_port *ap); /* obsolete */
- void (*set_mode) (struct ata_port *ap);
-
+ void (*phy_reset) (struct ata_port *ap);
void (*post_set_mode) (struct ata_port *ap);
int (*check_atapi_dma) (struct ata_queued_cmd *qc);
void (*bmdma_setup) (struct ata_queued_cmd *qc);
void (*bmdma_start) (struct ata_queued_cmd *qc);
- void (*data_xfer) (struct ata_device *, unsigned char *, unsigned int, int);
-
void (*qc_prep) (struct ata_queued_cmd *qc);
- unsigned int (*qc_issue) (struct ata_queued_cmd *qc);
-
- /* Error handlers. ->error_handler overrides ->eng_timeout and
- * indicates that new-style EH is in place.
- */
- void (*eng_timeout) (struct ata_port *ap); /* obsolete */
+ int (*qc_issue) (struct ata_queued_cmd *qc);
- void (*freeze) (struct ata_port *ap);
- void (*thaw) (struct ata_port *ap);
- void (*error_handler) (struct ata_port *ap);
- void (*post_internal_cmd) (struct ata_queued_cmd *qc);
+ void (*eng_timeout) (struct ata_port *ap);
irqreturn_t (*irq_handler)(int, void *, struct pt_regs *);
void (*irq_clear) (struct ata_port *);
void (*scr_write) (struct ata_port *ap, unsigned int sc_reg,
u32 val);
- int (*port_suspend) (struct ata_port *ap, pm_message_t mesg);
- int (*port_resume) (struct ata_port *ap);
-
int (*port_start) (struct ata_port *ap);
void (*port_stop) (struct ata_port *ap);
#define FIT(v,vmin,vmax) max_t(short,min_t(short,v,vmax),vmin)
-extern const unsigned long sata_deb_timing_normal[];
-extern const unsigned long sata_deb_timing_hotplug[];
-extern const unsigned long sata_deb_timing_long[];
-
-static inline const unsigned long *
-sata_ehc_deb_timing(struct ata_eh_context *ehc)
-{
- if (ehc->i.flags & ATA_EHI_HOTPLUGGED)
- return sata_deb_timing_hotplug;
- else
- return sata_deb_timing_normal;
-}
-
extern void ata_port_probe(struct ata_port *);
extern void __sata_phy_reset(struct ata_port *ap);
extern void sata_phy_reset(struct ata_port *ap);
extern void ata_bus_reset(struct ata_port *ap);
-extern int sata_set_spd(struct ata_port *ap);
-extern int sata_phy_debounce(struct ata_port *ap, const unsigned long *param);
-extern int sata_phy_resume(struct ata_port *ap, const unsigned long *param);
-extern int ata_std_prereset(struct ata_port *ap);
-extern int ata_std_softreset(struct ata_port *ap, unsigned int *classes);
-extern int sata_std_hardreset(struct ata_port *ap, unsigned int *class);
-extern void ata_std_postreset(struct ata_port *ap, unsigned int *classes);
-extern int ata_dev_revalidate(struct ata_device *dev, int post_reset);
extern void ata_port_disable(struct ata_port *);
extern void ata_std_ports(struct ata_ioports *ioaddr);
#ifdef CONFIG_PCI
extern int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_info,
unsigned int n_ports);
extern void ata_pci_remove_one (struct pci_dev *pdev);
-extern void ata_pci_device_do_suspend(struct pci_dev *pdev, pm_message_t state);
-extern void ata_pci_device_do_resume(struct pci_dev *pdev);
extern int ata_pci_device_suspend(struct pci_dev *pdev, pm_message_t state);
extern int ata_pci_device_resume(struct pci_dev *pdev);
-extern int ata_pci_clear_simplex(struct pci_dev *pdev);
#endif /* CONFIG_PCI */
extern int ata_device_add(const struct ata_probe_ent *ent);
-extern void ata_port_detach(struct ata_port *ap);
extern void ata_host_set_remove(struct ata_host_set *host_set);
extern int ata_scsi_detect(struct scsi_host_template *sht);
extern int ata_scsi_ioctl(struct scsi_device *dev, int cmd, void __user *arg);
extern int ata_scsi_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *));
+extern int ata_scsi_error(struct Scsi_Host *host);
extern int ata_scsi_release(struct Scsi_Host *host);
extern unsigned int ata_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc);
-extern int sata_scr_valid(struct ata_port *ap);
-extern int sata_scr_read(struct ata_port *ap, int reg, u32 *val);
-extern int sata_scr_write(struct ata_port *ap, int reg, u32 val);
-extern int sata_scr_write_flush(struct ata_port *ap, int reg, u32 val);
-extern int ata_port_online(struct ata_port *ap);
-extern int ata_port_offline(struct ata_port *ap);
extern int ata_scsi_device_resume(struct scsi_device *);
-extern int ata_scsi_device_suspend(struct scsi_device *, pm_message_t state);
-extern int ata_host_set_suspend(struct ata_host_set *host_set,
- pm_message_t mesg);
-extern void ata_host_set_resume(struct ata_host_set *host_set);
+extern int ata_scsi_device_suspend(struct scsi_device *);
+extern int ata_device_resume(struct ata_port *, struct ata_device *);
+extern int ata_device_suspend(struct ata_port *, struct ata_device *);
extern int ata_ratelimit(void);
-extern unsigned int ata_busy_sleep(struct ata_port *ap,
- unsigned long timeout_pat,
- unsigned long timeout);
-extern void ata_port_queue_task(struct ata_port *ap, void (*fn)(void *),
- void *data, unsigned long delay);
-extern u32 ata_wait_register(void __iomem *reg, u32 mask, u32 val,
- unsigned long interval_msec,
- unsigned long timeout_msec);
/*
* Default driver ops implementations
extern void ata_port_stop (struct ata_port *ap);
extern void ata_host_stop (struct ata_host_set *host_set);
extern irqreturn_t ata_interrupt (int irq, void *dev_instance, struct pt_regs *regs);
-extern void ata_mmio_data_xfer(struct ata_device *adev, unsigned char *buf,
- unsigned int buflen, int write_data);
-extern void ata_pio_data_xfer(struct ata_device *adev, unsigned char *buf,
- unsigned int buflen, int write_data);
-extern void ata_pio_data_xfer_noirq(struct ata_device *adev, unsigned char *buf,
- unsigned int buflen, int write_data);
extern void ata_qc_prep(struct ata_queued_cmd *qc);
-extern void ata_noop_qc_prep(struct ata_queued_cmd *qc);
-extern unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc);
+extern int ata_qc_issue_prot(struct ata_queued_cmd *qc);
extern void ata_sg_init_one(struct ata_queued_cmd *qc, void *buf,
unsigned int buflen);
extern void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg,
unsigned int n_elem);
extern unsigned int ata_dev_classify(const struct ata_taskfile *tf);
-extern void ata_id_string(const u16 *id, unsigned char *s,
- unsigned int ofs, unsigned int len);
-extern void ata_id_c_string(const u16 *id, unsigned char *s,
- unsigned int ofs, unsigned int len);
+extern void ata_dev_id_string(const u16 *id, unsigned char *s,
+ unsigned int ofs, unsigned int len);
+extern void ata_dev_config(struct ata_port *ap, unsigned int i);
extern void ata_bmdma_setup (struct ata_queued_cmd *qc);
extern void ata_bmdma_start (struct ata_queued_cmd *qc);
extern void ata_bmdma_stop(struct ata_queued_cmd *qc);
extern u8 ata_bmdma_status(struct ata_port *ap);
extern void ata_bmdma_irq_clear(struct ata_port *ap);
-extern void ata_bmdma_freeze(struct ata_port *ap);
-extern void ata_bmdma_thaw(struct ata_port *ap);
-extern void ata_bmdma_drive_eh(struct ata_port *ap, ata_prereset_fn_t prereset,
- ata_reset_fn_t softreset,
- ata_reset_fn_t hardreset,
- ata_postreset_fn_t postreset);
-extern void ata_bmdma_error_handler(struct ata_port *ap);
-extern void ata_bmdma_post_internal_cmd(struct ata_queued_cmd *qc);
-extern int ata_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc,
- u8 status, int in_wq);
extern void ata_qc_complete(struct ata_queued_cmd *qc);
-extern int ata_qc_complete_multiple(struct ata_port *ap, u32 qc_active,
- void (*finish_qc)(struct ata_queued_cmd *));
-extern void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd,
+extern void ata_eng_timeout(struct ata_port *ap);
+extern void ata_scsi_simulate(struct ata_port *ap, struct ata_device *dev,
+ struct scsi_cmnd *cmd,
void (*done)(struct scsi_cmnd *));
extern int ata_std_bios_param(struct scsi_device *sdev,
struct block_device *bdev,
sector_t capacity, int geom[]);
extern int ata_scsi_slave_config(struct scsi_device *sdev);
-extern void ata_scsi_slave_destroy(struct scsi_device *sdev);
-extern int ata_scsi_change_queue_depth(struct scsi_device *sdev,
- int queue_depth);
-extern struct ata_device *ata_dev_pair(struct ata_device *adev);
/*
* Timing helpers
extern struct ata_probe_ent *
ata_pci_init_native_mode(struct pci_dev *pdev, struct ata_port_info **port, int portmask);
extern int pci_test_config_bits(struct pci_dev *pdev, const struct pci_bits *bits);
-extern unsigned long ata_pci_default_filter(const struct ata_port *, struct ata_device *, unsigned long);
-#endif /* CONFIG_PCI */
-/*
- * EH
- */
-extern void ata_eng_timeout(struct ata_port *ap);
-
-extern void ata_port_schedule_eh(struct ata_port *ap);
-extern int ata_port_abort(struct ata_port *ap);
-extern int ata_port_freeze(struct ata_port *ap);
-
-extern void ata_eh_freeze_port(struct ata_port *ap);
-extern void ata_eh_thaw_port(struct ata_port *ap);
-
-extern void ata_eh_qc_complete(struct ata_queued_cmd *qc);
-extern void ata_eh_qc_retry(struct ata_queued_cmd *qc);
-
-extern void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset,
- ata_reset_fn_t softreset, ata_reset_fn_t hardreset,
- ata_postreset_fn_t postreset);
-
-/*
- * printk helpers
- */
-#define ata_port_printk(ap, lv, fmt, args...) \
- printk(lv"ata%u: "fmt, (ap)->id , ##args)
-
-#define ata_dev_printk(dev, lv, fmt, args...) \
- printk(lv"ata%u.%02u: "fmt, (dev)->ap->id, (dev)->devno , ##args)
-
-/*
- * ata_eh_info helpers
- */
-#define ata_ehi_push_desc(ehi, fmt, args...) do { \
- (ehi)->desc_len += scnprintf((ehi)->desc + (ehi)->desc_len, \
- ATA_EH_DESC_LEN - (ehi)->desc_len, \
- fmt , ##args); \
-} while (0)
-
-#define ata_ehi_clear_desc(ehi) do { \
- (ehi)->desc[0] = '\0'; \
- (ehi)->desc_len = 0; \
-} while (0)
-
-static inline void __ata_ehi_hotplugged(struct ata_eh_info *ehi)
-{
- if (ehi->flags & ATA_EHI_HOTPLUGGED)
- return;
-
- ehi->flags |= ATA_EHI_HOTPLUGGED | ATA_EHI_RESUME_LINK;
- ehi->hotplug_timestamp = jiffies;
-
- ehi->action |= ATA_EH_SOFTRESET;
- ehi->probe_mask |= (1 << ATA_MAX_DEVICES) - 1;
-}
+#endif /* CONFIG_PCI */
-static inline void ata_ehi_hotplugged(struct ata_eh_info *ehi)
-{
- __ata_ehi_hotplugged(ehi);
- ehi->err_mask |= AC_ERR_ATA_BUS;
-}
-/*
- * qc helpers
- */
static inline int
ata_sg_is_last(struct scatterlist *sg, struct ata_queued_cmd *qc)
{
return (tag < ATA_MAX_QUEUE) ? 1 : 0;
}
-static inline unsigned int ata_tag_internal(unsigned int tag)
-{
- return tag == ATA_MAX_QUEUE - 1;
-}
-
-/*
- * device helpers
- */
-static inline unsigned int ata_class_enabled(unsigned int class)
-{
- return class == ATA_DEV_ATA || class == ATA_DEV_ATAPI;
-}
-
-static inline unsigned int ata_class_disabled(unsigned int class)
-{
- return class == ATA_DEV_ATA_UNSUP || class == ATA_DEV_ATAPI_UNSUP;
-}
-
-static inline unsigned int ata_class_absent(unsigned int class)
-{
- return !ata_class_enabled(class) && !ata_class_disabled(class);
-}
-
-static inline unsigned int ata_dev_enabled(const struct ata_device *dev)
-{
- return ata_class_enabled(dev->class);
-}
-
-static inline unsigned int ata_dev_disabled(const struct ata_device *dev)
-{
- return ata_class_disabled(dev->class);
-}
-
-static inline unsigned int ata_dev_absent(const struct ata_device *dev)
-{
- return ata_class_absent(dev->class);
-}
-
-static inline unsigned int ata_dev_ready(const struct ata_device *dev)
+static inline unsigned int ata_dev_present(const struct ata_device *dev)
{
- return ata_dev_enabled(dev) && !(dev->flags & ATA_DFLAG_SUSPENDED);
+ return ((dev->class == ATA_DEV_ATA) ||
+ (dev->class == ATA_DEV_ATAPI));
}
-/*
- * port helpers
- */
-static inline int ata_port_max_devices(const struct ata_port *ap)
-{
- if (ap->flags & ATA_FLAG_SLAVE_POSS)
- return 2;
- return 1;
-}
-
-
static inline u8 ata_chk_status(struct ata_port *ap)
{
return ap->ops->check_status(ap);
if (status & (ATA_BUSY | ATA_DRQ)) {
unsigned long l = ap->ioaddr.status_addr;
- if (ata_msg_warn(ap))
- printk(KERN_WARNING "ATA: abnormal status 0x%X on port 0x%lX\n",
- status, l);
+ printk(KERN_WARNING
+ "ATA: abnormal status 0x%X on port 0x%lX\n",
+ status, l);
}
return status;
qc->tf.ctl |= ATA_NIEN;
}
-static inline struct ata_queued_cmd *__ata_qc_from_tag(struct ata_port *ap,
- unsigned int tag)
+static inline struct ata_queued_cmd *ata_qc_from_tag (struct ata_port *ap,
+ unsigned int tag)
{
if (likely(ata_tag_valid(tag)))
return &ap->qcmd[tag];
return NULL;
}
-static inline struct ata_queued_cmd *ata_qc_from_tag(struct ata_port *ap,
- unsigned int tag)
-{
- struct ata_queued_cmd *qc = __ata_qc_from_tag(ap, tag);
-
- if (unlikely(!qc) || !ap->ops->error_handler)
- return qc;
-
- if ((qc->flags & (ATA_QCFLAG_ACTIVE |
- ATA_QCFLAG_FAILED)) == ATA_QCFLAG_ACTIVE)
- return qc;
-
- return NULL;
-}
-
-static inline void ata_tf_init(struct ata_device *dev, struct ata_taskfile *tf)
+static inline void ata_tf_init(struct ata_port *ap, struct ata_taskfile *tf, unsigned int device)
{
memset(tf, 0, sizeof(*tf));
- tf->ctl = dev->ap->ctl;
- if (dev->devno == 0)
+ tf->ctl = ap->ctl;
+ if (device == 0)
tf->device = ATA_DEVICE_OBS;
else
tf->device = ATA_DEVICE_OBS | ATA_DEV1;
qc->nbytes = qc->curbytes = 0;
qc->err_mask = 0;
- ata_tf_init(qc->dev, &qc->tf);
-
- /* init result_tf such that it indicates normal completion */
- qc->result_tf.command = ATA_DRDY;
- qc->result_tf.feature = 0;
+ ata_tf_init(qc->ap, &qc->tf, qc->dev->devno);
}
+
/**
* ata_irq_on - Enable interrupts on a port.
* @ap: Port on which interrupts are enabled.
status = ata_busy_wait(ap, bits, 1000);
if (status & bits)
- if (ata_msg_err(ap))
- printk(KERN_ERR "abnormal status 0x%X\n", status);
+ DPRINTK("abnormal status 0x%X\n", status);
/* get controller status; clear intr, err bits */
if (ap->flags & ATA_FLAG_MMIO) {
post_stat = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
}
- if (ata_msg_intr(ap))
- printk(KERN_INFO "%s: irq ack: host_stat 0x%X, new host_stat 0x%X, drv_stat 0x%X\n",
- __FUNCTION__,
- host_stat, post_stat, status);
+ VPRINTK("irq ack: host_stat 0x%X, new host_stat 0x%X, drv_stat 0x%X\n",
+ host_stat, post_stat, status);
return status;
}
+static inline u32 scr_read(struct ata_port *ap, unsigned int reg)
+{
+ return ap->ops->scr_read(ap, reg);
+}
+
+static inline void scr_write(struct ata_port *ap, unsigned int reg, u32 val)
+{
+ ap->ops->scr_write(ap, reg, val);
+}
+
+static inline void scr_write_flush(struct ata_port *ap, unsigned int reg,
+ u32 val)
+{
+ ap->ops->scr_write(ap, reg, val);
+ (void) ap->ops->scr_read(ap, reg);
+}
+
+static inline unsigned int sata_dev_present(struct ata_port *ap)
+{
+ return ((scr_read(ap, SCR_STATUS) & 0xf) == 0x3) ? 1 : 0;
+}
+
static inline int ata_try_flush_cache(const struct ata_device *dev)
{
return ata_id_wcache_enabled(dev->id) ||
static inline unsigned int ac_err_mask(u8 status)
{
- if (status & (ATA_BUSY | ATA_DRQ))
- return AC_ERR_HSM;
+ if (status & ATA_BUSY)
+ return AC_ERR_ATA_BUS;
if (status & (ATA_ERR | ATA_DF))
return AC_ERR_DEV;
return 0;
dma_free_coherent(dev, ATA_DMA_PAD_BUF_SZ, ap->pad, ap->pad_dma);
}
-static inline struct ata_port *ata_shost_to_port(struct Scsi_Host *host)
-{
- return (struct ata_port *) &host->hostdata[0];
-}
-
#endif /* __LINUX_LIBATA_H__ */
git://git.onelab.eu / linux-2.6.git / blobdiff